Income tax expense (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Expense Tables

Income tax expense

Income tax expense is different from the expected amount that would be computed by applying the statutory Canadian federal and provincial income tax rates to NXT's income (loss) before income taxes as follows:

	2014			2013			2012
Net income (loss) before income taxes	$	(1,563,361	)	$	(4,942,015	)	$	2,489,149
Canadian statutory income tax rate		25.00	%		25.00	%		25.00	%
Income tax (recovery) at statutory income tax rate		(390,840	)		(1,235,504	)		622,287
Effect of non- deductible expenses and other items:
Stock-based compensation and other expenses		176,719			157,993			12,149
Revaluation of US$ Warrants		10,700			342,875			-
Foreign exchange adjustment on USA losses		(185,093	)		(131,771	)		42,389
Other		1,474			(4,428	)		(2,148	)
		(387,040	)		(870,835	)		674,677
Change in valuation allowance		387,040			870,835			(674,677	)
Income taxes paid in foreign jurisdictions		-			399,546			426,421
Current income tax expense		-			399,546			426,421

Unrecorded deferred income tax assets

The Company has significant unrecorded deferred income tax assets for which a full valuation allowance has been provided due to uncertainty regarding their potential future utilization, as follows:

	2014			2013			2012
Net operating losses carried forward:
Canada (expiration dates 2015 to 2034)	$	4,236,318		$	4,005,683		$	3,269,542
USA (expiration dates 2020 to 2026)		2,225,150			2,040,056			1,908,285
Timing differences on property & equipment and financing costs		2,106,780			2,135,468			2,132,545
		8,568,247			8,181,207			7,310,372
Less valuation allowance		(8,568,247	)		(8,181,207	)		(7,310,372	)